Coupeville Town Of
PWSID WA5315550 · Coupeville, Washington · serves 4,142 people · groundwater source
C
Fair
PFAS test results (EPA UCMR 5)
| Contaminant | Result | Federal limit (MCL) | Sampled |
|---|---|---|---|
| PFHxA | 17 ppt | — | 8/20/2025 |
| PFPeA | 12 ppt | — | 8/20/2025 |
| PFPeA | 11 ppt | — | 3/10/2025 |
| PFOA | 9.8 ppt | 4 ppt | 8/20/2025 |
| PFBS | 6.7 ppt | — | 8/20/2025 |
| PFHxA | 5.9 ppt | — | 3/10/2025 |
| PFBA | 5.3 ppt | — | 3/10/2025 |
| PFHxS | 3.8 ppt | 10 ppt | 8/20/2025 |
| PFHpA | 3.3 ppt | — | 8/20/2025 |
ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.
Violation history
No violations on record in the period covered. 🎉